forked from AbleOS/holey-bytes
Doing sus stuff
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@ -35,12 +35,12 @@ macro_rules! constmod {
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/// - I: Immediate
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/// - L: Memory load / store size (u16)
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/// - Other types are identity-mapped
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///
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///
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/// # BRC special-case
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/// BRC's 3rd operand is plain byte, not a register. Encoding is the same, but for some cases it may matter.
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///
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///
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/// Please, if you distinguish in your API between byte and register, special case this one.
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///
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///
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/// Sorry for that :(
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#[macro_export]
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macro_rules! invoke_with_def {
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@ -134,34 +134,29 @@ constmod!(pub opcode(u8) {
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#[repr(packed)]
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pub struct ParamBBBB(pub u8, pub u8, pub u8, pub u8);
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#[repr(packed)]
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pub struct ParamBBB(pub u8, pub u8, pub u8);
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#[repr(packed)]
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pub struct ParamBBDH(pub u8, pub u8, pub u64, pub u16);
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#[repr(packed)]
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pub struct ParamBBD(pub u8, pub u8, pub u64);
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#[repr(packed)]
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pub struct ParamBBW(pub u8, pub u8, pub u32);
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#[repr(packed)]
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pub struct ParamBB(pub u8, pub u8);
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#[repr(packed)]
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pub struct ParamBD(pub u8, pub u64);
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/// # Safety
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/// Has to be valid to be decoded from bytecode.
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pub unsafe trait OpParam {}
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unsafe impl OpParam for ParamBBBB {}
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unsafe impl OpParam for ParamBBB {}
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unsafe impl OpParam for ParamBBDH {}
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unsafe impl OpParam for ParamBBD {}
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unsafe impl OpParam for ParamBBW {}
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unsafe impl OpParam for ParamBB {}
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unsafe impl OpParam for ParamBD {}
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unsafe impl OpParam for u64 {}
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unsafe impl OpParam for () {}
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pub unsafe trait ProgramVal {}
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unsafe impl ProgramVal for ParamBBBB {}
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unsafe impl ProgramVal for ParamBBB {}
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unsafe impl ProgramVal for ParamBBDH {}
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unsafe impl ProgramVal for ParamBBD {}
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unsafe impl ProgramVal for ParamBBW {}
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unsafe impl ProgramVal for ParamBB {}
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unsafe impl ProgramVal for ParamBD {}
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unsafe impl ProgramVal for u64 {}
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unsafe impl ProgramVal for u8 {} // Opcode
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unsafe impl ProgramVal for () {}
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@ -26,7 +26,9 @@ use {
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bmc::BlockCopier,
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core::{cmp::Ordering, mem::size_of, ops},
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derive_more::Display,
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hbbytecode::{OpParam, ParamBB, ParamBBB, ParamBBBB, ParamBBD, ParamBBDH, ParamBBW, ParamBD},
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hbbytecode::{
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ParamBB, ParamBBB, ParamBBBB, ParamBBD, ParamBBDH, ParamBBW, ParamBD, ProgramVal,
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},
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value::{Value, ValueVariant},
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};
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@ -366,7 +368,7 @@ where
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/// Decode instruction operands
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#[inline(always)]
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unsafe fn decode<T: OpParam>(&mut self) -> T {
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unsafe fn decode<T: ProgramVal>(&mut self) -> T {
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let pc1 = self.pc + 1;
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let data = self.memory.prog_read_unchecked::<T>(pc1 as _);
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self.pc += 1 + size_of::<T>();
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@ -515,13 +517,13 @@ pub trait Memory {
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///
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/// # Safety
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/// - Data read have to be valid
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unsafe fn prog_read<T>(&mut self, addr: u64) -> Option<T>;
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unsafe fn prog_read<T: ProgramVal>(&mut self, addr: u64) -> Option<T>;
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/// Read from program memory to exectue
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///
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/// # Safety
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/// - You have to be really sure that these bytes are there, understand?
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unsafe fn prog_read_unchecked<T>(&mut self, addr: u64) -> T;
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unsafe fn prog_read_unchecked<T: ProgramVal>(&mut self, addr: u64) -> T;
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}
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/// Unhandled load access trap
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@ -1,7 +1,7 @@
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//! Program instruction cache
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use {
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super::{lookup::AddrPageLookuper, paging::PageTable, HandlePageFault, PageSize},
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super::{lookup::AddrPageLookuper, paging::PageTable, PageSize},
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core::{
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mem::{size_of, MaybeUninit},
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ptr::{copy_nonoverlapping, NonNull},
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@ -37,11 +37,7 @@ impl ICache {
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///
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/// # Safety
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/// `T` should be valid to read from instruction memory
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pub(super) unsafe fn fetch<T>(
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&mut self,
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addr: u64,
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root_pt: *const PageTable,
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) -> Option<T> {
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pub(super) unsafe fn fetch<T>(&mut self, addr: u64, root_pt: *const PageTable) -> Option<T> {
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let mut ret = MaybeUninit::<T>::uninit();
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let pbase = self
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